Allowing OSPF through PIX, for dynamic Internet backup
I am trying to setup an external router to advertise a default route with OSPF through a PIX to an inside router using 'default-information originate' (not always), this way the internal router will switch to a floating default static route pointing to another PIX connected to a DSL router for backup if the primary routers default route goes down.
Using static (inside,outside) and static (outside,inside) [PIX6.2] I am able to get each router to think it is on the same L2 segment as the other, then changing the OSPF network type to non-broadcast and setting neighbor statements I get the two routers to form an adjacency (shows FULL), however no routing information is being populated into either routing table. I have loopbacks with /32's defined on both routers and participating in OSPF, just so I could see if any network information was being passed. I can see the advertised networks of the other router in a 'show ip ospf database', but not in the routing table. I have an access-list on the PIX permitting OSPF traffic (ip protocol 89) between the routers, and it seems that hellos and LSAs are getting through.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...